Sea Slugs in Yokobama, Futo | SEASLUG.WORLD

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Best Time to Dive in Yokobama

139

Total Observations

13.0°C - 25.0°C

Water Temperature Range

Dec , Jan , Jun

Peak Season

80

Peak Observations

Monthly Diving Activity & Water Temperature

Observations Water Temperature Higher bars indicate peak diving activity

Planning Your Dive Trip

Best for beginners: Peak Activity season (peak activity)
Water temperature: 13.0°C - 25.0°C range

Peak observations: 80 in Peak Activity
Year-round diving: 139 total observations recorded

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Thecacera sp. 2

Thecacera sp. 2

Thecacera sp.13

Thecacera sp.13

Bullina lineata

Bullina lineata

(J. E. Gray, 1825)

Tambja gabrielae

Tambja gabrielae

Pola, Cervera & Gosliner, 2005

Aplysiopsis orientalis

Aplysiopsis orientalis

(Baba, 1949)

Aplysia kurodai

Aplysia kurodai

(Baba, 1937)

Thecacera picta

Thecacera picta

Baba, 1972

Tenellia sp.54

Tenellia sp.54

Thecacera pikachu

Thecacera pikachu

Pola, Paz-Sedano, Martín, L. Warren, Noble & Martín-Hervás, 2026

Goniobranchus sp.16

Goniobranchus sp.16

Coryphellina lotos

Coryphellina lotos

Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, H. Saito, Lundin, Schrödl & Picton, 2017

Tenellia ornata

Tenellia ornata

(Baba, 1937)

Aplysia nigrocincta

Aplysia nigrocincta

E. von Martens, 1880

Tambja amakusana

Tambja amakusana

Baba, 1987

Ceratodoris hiroi

Ceratodoris hiroi

(Baba, 1938)

Chromodoris orientalis

Chromodoris orientalis

Rudman, 1983

Dermatobranchus otome

Dermatobranchus otome

Baba, 1992

Protaeolidiella atra

Protaeolidiella atra

Baba, 1955

Pelagella longicornis

Pelagella longicornis

Paz-Sedano, Smirnoff, Gosliner & Pola, 2023

Armina sp. 2

Armina sp. 2

Thecacera sp.12

Thecacera sp.12

Aplysia japonica

Aplysia japonica

G. B. Sowerby II, 1869

Hypselodoris festiva

Hypselodoris festiva

(A. Adams, 1861)

Thuridilla vataae

Thuridilla vataae

(Risbec, 1928)

Jorunna sp. 1

Jorunna sp. 1

Philine trapezia

Philine trapezia

Hedley, 1902

Aplysia sagamiana

Aplysia sagamiana

Baba, 1949

Stylocheilus striatus

Stylocheilus striatus

(Quoy & Gaimard, 1832)

Elysia marginata

Elysia marginata

(Pease, 1871)

Thuridilla splendens

Thuridilla splendens

(Baba, 1949)

Aplysiopsis nigra

Aplysiopsis nigra

(Baba, 1949)

Pleurobranchus peronii

Pleurobranchus peronii

Cuvier, 1804

Kaloplocamus acutus

Kaloplocamus acutus

Baba, 1949

Kaloplocamus dokte

Kaloplocamus dokte

Vallès & Gosliner, 2006

Tambja sagamiana

Tambja sagamiana

(Baba, 1955)

Pelagella felis

Pelagella felis

(Baba, 1949)

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Pelagella joubini

Pelagella joubini

(Risbec, 1928)

Aegires villosus

Aegires villosus

Farran, 1905

Rostanga risbeci

Rostanga risbeci

Baba, 1991

Rostanga sp. 2

Rostanga sp. 2

Goniobranchus leopardus

Goniobranchus leopardus

(Rudman, 1987)

Goniobranchus setoensis

Goniobranchus setoensis

(Baba, 1938)

Verconia nivalis

Verconia nivalis

(Baba, 1937)

Hypselodoris tryoni

Hypselodoris tryoni

(Garrett, 1873)

Phyllidia ocellata

Phyllidia ocellata

Cuvier, 1804

Dermatobranchus fasciatus

Dermatobranchus fasciatus

Gosliner & Fahey, 2011

Eubranchus echizenicus

Eubranchus echizenicus

Baba, 1975

Eubranchus mimeticus

Eubranchus mimeticus

Baba, 1975

Antonietta janthina

Antonietta janthina

Baba & Hamatani, 1977

Cratena sp. 2

Cratena sp. 2

Favorinus mirabilis

Favorinus mirabilis

Baba, 1955

Pruvotfolia rhodopos

Pruvotfolia rhodopos

(Yonow, 2000)

Bulbaeolidia alba

Bulbaeolidia alba

(Risbec, 1928)

Tenellia beta

Tenellia beta

(Baba & Abe, 1964)

Abronica purpureoanulata

Abronica purpureoanulata

(Baba, 1961)

Tenellia sp.11

Tenellia sp.11

Polycera sp. 3

Polycera sp. 3

Cerberilla sp. 5

Cerberilla sp. 5

Polycera abei

Polycera abei

(Baba, 1960)

Janolus sp. 5

Janolus sp. 5

Hancockia sp. 1

Hancockia sp. 1

Catriona signifera

Catriona signifera

Baba, 1961

Abronica sp. 5

Abronica sp. 5

Aglajidae sp. 1

Aglajidae sp. 1

Discodorididae sp. 1

Discodorididae sp. 1

Eubranchus sp.26

Eubranchus sp.26

Bursatella ocelligera

Bursatella ocelligera

(Bergh, 1902)

Coryphellina spp.

Coryphellina spp.

Tenellia sp.84

Tenellia sp.84